enic: enable rq before updating rq descriptors
[ Upstream commit e8588e268509292550634d9a35f2723a207683b2 ] rq should be enabled before posting the buffers to rq desc. If not hw sees stale value and casuses DMAR errors. Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
431f979f76
commit
92ff7ff031
@ -1726,6 +1726,8 @@ static int enic_open(struct net_device *netdev)
|
||||
}
|
||||
|
||||
for (i = 0; i < enic->rq_count; i++) {
|
||||
/* enable rq before updating rq desc */
|
||||
vnic_rq_enable(&enic->rq[i]);
|
||||
vnic_rq_fill(&enic->rq[i], enic_rq_alloc_buf);
|
||||
/* Need at least one buffer on ring to get going */
|
||||
if (vnic_rq_desc_used(&enic->rq[i]) == 0) {
|
||||
@ -1737,8 +1739,6 @@ static int enic_open(struct net_device *netdev)
|
||||
|
||||
for (i = 0; i < enic->wq_count; i++)
|
||||
vnic_wq_enable(&enic->wq[i]);
|
||||
for (i = 0; i < enic->rq_count; i++)
|
||||
vnic_rq_enable(&enic->rq[i]);
|
||||
|
||||
if (!enic_is_dynamic(enic) && !enic_is_sriov_vf(enic))
|
||||
enic_dev_add_station_addr(enic);
|
||||
@ -1765,8 +1765,12 @@ static int enic_open(struct net_device *netdev)
|
||||
return 0;
|
||||
|
||||
err_out_free_rq:
|
||||
for (i = 0; i < enic->rq_count; i++)
|
||||
for (i = 0; i < enic->rq_count; i++) {
|
||||
err = vnic_rq_disable(&enic->rq[i]);
|
||||
if (err)
|
||||
return err;
|
||||
vnic_rq_clean(&enic->rq[i], enic_free_rq_buf);
|
||||
}
|
||||
enic_dev_notify_unset(enic);
|
||||
err_out_free_intr:
|
||||
enic_unset_affinity_hint(enic);
|
||||
|
Loading…
x
Reference in New Issue
Block a user